The summoner name or tag is incorrect
angel #0014
SILVER IV
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Match History for Patch: 16.6.1
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Champion Stats for Patch: 16.6.1
Champion Mastery
lvl: 67
983,987
lvl: 39
576,139
lvl: 19
177,397
lvl: 19
174,781
lvl: 11
96,598
lvl: 11
91,450
lvl: 10
86,353
lvl: 10
85,831
lvl: 10
82,472
lvl: 7
43,645
lvl: 5
25,836
lvl: 5
25,199